ryu: update kernel prebuilt[ DO NOT MERGE ] am: 0564786d34  -s ours am: e941b35758 am: 91b3e52b78
am: 98038cfdff

Change-Id: Ic8078e69c9115a038bfd2d040b2c8186f7ea8e95
tree: 81a83ec6c147dd6701d7e5464cbb70abd373fa1d
  1. Image.fit
  2. Image.fit.kasan
  3. push-kernel.sh